diff mbox series

[3/3] Start separating pipe vs transcoder set logic for bigjoiner during modeset

Message ID 20240108120725.20057-4-stanislav.lisovskiy@intel.com (mailing list archive)
State New, archived
Headers show
Series Bigjoiner refactoring | expand

Commit Message

Stanislav Lisovskiy Jan. 8, 2024, 12:07 p.m. UTC
Handle only bigjoiner masters in skl_commit_modeset_enables/disables,
slave crtcs should be handled by master hooks. Same for encoders.
That way we can also remove a bunch of checks like intel_crtc_is_bigjoiner_slave.

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c     |   3 +-
 drivers/gpu/drm/i915/display/intel_display.c | 148 ++++++++++++++++---
 2 files changed, 128 insertions(+), 23 deletions(-)

Comments

Ville Syrjälä Jan. 12, 2024, 4:47 p.m. UTC | #1
On Mon, Jan 08, 2024 at 02:07:25PM +0200, Stanislav Lisovskiy wrote:
> Handle only bigjoiner masters in skl_commit_modeset_enables/disables,
> slave crtcs should be handled by master hooks. Same for encoders.
> That way we can also remove a bunch of checks like intel_crtc_is_bigjoiner_slave.
> 
> Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c     |   3 +-
>  drivers/gpu/drm/i915/display/intel_display.c | 148 ++++++++++++++++---
>  2 files changed, 128 insertions(+), 23 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 2746655bcb264..9723f1b49cf95 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3340,8 +3340,7 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
>  {
>  	drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
>  
> -	if (!intel_crtc_is_bigjoiner_slave(crtc_state))
> -		intel_ddi_enable_transcoder_func(encoder, crtc_state);
> +	intel_ddi_enable_transcoder_func(encoder, crtc_state);
>  
>  	/* Enable/Disable DP2.0 SDP split config before transcoder */
>  	intel_audio_sdp_split_update(crtc_state);
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index eec76ec167069..24388226db465 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -1630,6 +1630,93 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
>  	hsw_set_transconf(crtc_state);
>  }
>  
> +static void hsw_crtc_enable_slave(struct intel_atomic_state *state,
> +				  struct intel_crtc *crtc)
> +{
> +	const struct intel_crtc_state *new_crtc_state =
> +		intel_atomic_get_new_crtc_state(state, crtc);
> +	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> +	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
> +	bool psl_clkgate_wa;
> +
> +	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> +		return;
> +
> +	intel_dmc_enable_pipe(dev_priv, crtc->pipe);
> +
> +	if (!new_crtc_state->bigjoiner_pipes) {
> +		intel_encoders_pre_pll_enable(state, crtc);
> +
> +		if (new_crtc_state->shared_dpll)
> +			intel_enable_shared_dpll(new_crtc_state);
> +
> +		intel_encoders_pre_enable(state, crtc);
> +	} else {
> +		icl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
> +	}
> +
> +	intel_dsc_enable(new_crtc_state);
> +
> +	if (DISPLAY_VER(dev_priv) >= 13)
> +		intel_uncompressed_joiner_enable(new_crtc_state);
> +
> +	intel_set_pipe_src_size(new_crtc_state);
> +	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
> +		bdw_set_pipe_misc(new_crtc_state);
> +
> +	crtc->active = true;
> +
> +	/* Display WA #1180: WaDisableScalarClockGating: glk */
> +	psl_clkgate_wa = DISPLAY_VER(dev_priv) == 10 &&
> +		new_crtc_state->pch_pfit.enabled;
> +	if (psl_clkgate_wa)
> +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
> +
> +	if (DISPLAY_VER(dev_priv) >= 9)
> +		skl_pfit_enable(new_crtc_state);
> +	else
> +		ilk_pfit_enable(new_crtc_state);
> +
> +	/*
> +	 * On ILK+ LUT must be loaded before the pipe is running but with
> +	 * clocks enabled
> +	 */
> +	intel_color_load_luts(new_crtc_state);
> +	intel_color_commit_noarm(new_crtc_state);
> +	intel_color_commit_arm(new_crtc_state);
> +	/* update DSPCNTR to configure gamma/csc for pipe bottom color */
> +	if (DISPLAY_VER(dev_priv) < 9)
> +		intel_disable_primary_plane(new_crtc_state);
> +
> +	hsw_set_linetime_wm(new_crtc_state);
> +
> +	if (DISPLAY_VER(dev_priv) >= 11)
> +		icl_set_pipe_chicken(new_crtc_state);
> +
> +	intel_initial_watermarks(state, crtc);
> +
> +	intel_crtc_vblank_on(new_crtc_state);
> +
> +	intel_encoders_enable(state, crtc);
> +
> +	if (psl_clkgate_wa) {
> +		intel_crtc_wait_for_next_vblank(crtc);
> +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
> +	}
> +
> +	/* If we change the relative order between pipe/planes enabling, we need
> +	 * to change the workaround. */
> +	hsw_workaround_pipe = new_crtc_state->hsw_workaround_pipe;
> +	if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) {
> +		struct intel_crtc *wa_crtc;
> +
> +		wa_crtc = intel_crtc_for_pipe(dev_priv, hsw_workaround_pipe);
> +
> +		intel_crtc_wait_for_next_vblank(wa_crtc);
> +		intel_crtc_wait_for_next_vblank(wa_crtc);
> +	}
> +}
> +
>  static void hsw_crtc_enable(struct intel_atomic_state *state,
>  			    struct intel_crtc *crtc)
>  {
> @@ -1639,10 +1726,16 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
>  	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
>  	enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
>  	bool psl_clkgate_wa;
> +	struct intel_crtc *slave_crtc;
>  
>  	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
>  		return;
>  
> +	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, slave_crtc,
> +					 intel_crtc_bigjoiner_slave_pipes(new_crtc_state)) {
> +		hsw_crtc_enable_slave(state, slave_crtc);
> +	}

Thats not really what I'm after. Ideally we shouldn't end up with
any master vs. slave split here, just a pipe vs. transcoder split.
And then the high level flow should look something along the
lines of:

crtc_enable()
{
	transcoder_thing1();

	for_each_joined_pipe()
		pipe_thing1();

	transcoder_thing2();

	for_each_joined_pipe()
		pipe_thing2();

	...
}
Stanislav Lisovskiy Jan. 15, 2024, 9:27 a.m. UTC | #2
On Fri, Jan 12, 2024 at 06:47:10PM +0200, Ville Syrjälä wrote:
> On Mon, Jan 08, 2024 at 02:07:25PM +0200, Stanislav Lisovskiy wrote:
> > Handle only bigjoiner masters in skl_commit_modeset_enables/disables,
> > slave crtcs should be handled by master hooks. Same for encoders.
> > That way we can also remove a bunch of checks like intel_crtc_is_bigjoiner_slave.
> > 
> > Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_ddi.c     |   3 +-
> >  drivers/gpu/drm/i915/display/intel_display.c | 148 ++++++++++++++++---
> >  2 files changed, 128 insertions(+), 23 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> > index 2746655bcb264..9723f1b49cf95 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -3340,8 +3340,7 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
> >  {
> >  	drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
> >  
> > -	if (!intel_crtc_is_bigjoiner_slave(crtc_state))
> > -		intel_ddi_enable_transcoder_func(encoder, crtc_state);
> > +	intel_ddi_enable_transcoder_func(encoder, crtc_state);
> >  
> >  	/* Enable/Disable DP2.0 SDP split config before transcoder */
> >  	intel_audio_sdp_split_update(crtc_state);
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index eec76ec167069..24388226db465 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -1630,6 +1630,93 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
> >  	hsw_set_transconf(crtc_state);
> >  }
> >  
> > +static void hsw_crtc_enable_slave(struct intel_atomic_state *state,
> > +				  struct intel_crtc *crtc)
> > +{
> > +	const struct intel_crtc_state *new_crtc_state =
> > +		intel_atomic_get_new_crtc_state(state, crtc);
> > +	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> > +	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
> > +	bool psl_clkgate_wa;
> > +
> > +	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> > +		return;
> > +
> > +	intel_dmc_enable_pipe(dev_priv, crtc->pipe);
> > +
> > +	if (!new_crtc_state->bigjoiner_pipes) {
> > +		intel_encoders_pre_pll_enable(state, crtc);
> > +
> > +		if (new_crtc_state->shared_dpll)
> > +			intel_enable_shared_dpll(new_crtc_state);
> > +
> > +		intel_encoders_pre_enable(state, crtc);
> > +	} else {
> > +		icl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
> > +	}
> > +
> > +	intel_dsc_enable(new_crtc_state);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 13)
> > +		intel_uncompressed_joiner_enable(new_crtc_state);
> > +
> > +	intel_set_pipe_src_size(new_crtc_state);
> > +	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
> > +		bdw_set_pipe_misc(new_crtc_state);
> > +
> > +	crtc->active = true;
> > +
> > +	/* Display WA #1180: WaDisableScalarClockGating: glk */
> > +	psl_clkgate_wa = DISPLAY_VER(dev_priv) == 10 &&
> > +		new_crtc_state->pch_pfit.enabled;
> > +	if (psl_clkgate_wa)
> > +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 9)
> > +		skl_pfit_enable(new_crtc_state);
> > +	else
> > +		ilk_pfit_enable(new_crtc_state);
> > +
> > +	/*
> > +	 * On ILK+ LUT must be loaded before the pipe is running but with
> > +	 * clocks enabled
> > +	 */
> > +	intel_color_load_luts(new_crtc_state);
> > +	intel_color_commit_noarm(new_crtc_state);
> > +	intel_color_commit_arm(new_crtc_state);
> > +	/* update DSPCNTR to configure gamma/csc for pipe bottom color */
> > +	if (DISPLAY_VER(dev_priv) < 9)
> > +		intel_disable_primary_plane(new_crtc_state);
> > +
> > +	hsw_set_linetime_wm(new_crtc_state);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 11)
> > +		icl_set_pipe_chicken(new_crtc_state);
> > +
> > +	intel_initial_watermarks(state, crtc);
> > +
> > +	intel_crtc_vblank_on(new_crtc_state);
> > +
> > +	intel_encoders_enable(state, crtc);
> > +
> > +	if (psl_clkgate_wa) {
> > +		intel_crtc_wait_for_next_vblank(crtc);
> > +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
> > +	}
> > +
> > +	/* If we change the relative order between pipe/planes enabling, we need
> > +	 * to change the workaround. */
> > +	hsw_workaround_pipe = new_crtc_state->hsw_workaround_pipe;
> > +	if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) {
> > +		struct intel_crtc *wa_crtc;
> > +
> > +		wa_crtc = intel_crtc_for_pipe(dev_priv, hsw_workaround_pipe);
> > +
> > +		intel_crtc_wait_for_next_vblank(wa_crtc);
> > +		intel_crtc_wait_for_next_vblank(wa_crtc);
> > +	}
> > +}
> > +
> >  static void hsw_crtc_enable(struct intel_atomic_state *state,
> >  			    struct intel_crtc *crtc)
> >  {
> > @@ -1639,10 +1726,16 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
> >  	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
> >  	enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
> >  	bool psl_clkgate_wa;
> > +	struct intel_crtc *slave_crtc;
> >  
> >  	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> >  		return;
> >  
> > +	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, slave_crtc,
> > +					 intel_crtc_bigjoiner_slave_pipes(new_crtc_state)) {
> > +		hsw_crtc_enable_slave(state, slave_crtc);
> > +	}
> 
> Thats not really what I'm after. Ideally we shouldn't end up with
> any master vs. slave split here, just a pipe vs. transcoder split.
> And then the high level flow should look something along the
> lines of:
> 
> crtc_enable()
> {
> 	transcoder_thing1();
> 
> 	for_each_joined_pipe()
> 		pipe_thing1();
> 
> 	transcoder_thing2();
> 
> 	for_each_joined_pipe()
> 		pipe_thing2();
> 
> 	...
> }
> 	
> -- 
> Ville Syrjälä

Yes, I remember we discussed that you don't want any slaves to be processed
in *commit_modeset_enables/disables, I guess it obivously means we need to
process the here. Ah, I guess you mean we don't explicitly state, those are slaves
but just iterate through all joined pipe mask. 

Okay, got it(wonder why I didn't do that myself initially..)

Stan 

> Intel
Stanislav Lisovskiy Jan. 29, 2024, 12:57 p.m. UTC | #3
On Fri, Jan 12, 2024 at 06:47:10PM +0200, Ville Syrjälä wrote:
> On Mon, Jan 08, 2024 at 02:07:25PM +0200, Stanislav Lisovskiy wrote:
> > Handle only bigjoiner masters in skl_commit_modeset_enables/disables,
> > slave crtcs should be handled by master hooks. Same for encoders.
> > That way we can also remove a bunch of checks like intel_crtc_is_bigjoiner_slave.
> > 
> > Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
> > ---
> >  drivers/gpu/drm/i915/display/intel_ddi.c     |   3 +-
> >  drivers/gpu/drm/i915/display/intel_display.c | 148 ++++++++++++++++---
> >  2 files changed, 128 insertions(+), 23 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> > index 2746655bcb264..9723f1b49cf95 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -3340,8 +3340,7 @@ static void intel_enable_ddi(struct intel_atomic_state *state,
> >  {
> >  	drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
> >  
> > -	if (!intel_crtc_is_bigjoiner_slave(crtc_state))
> > -		intel_ddi_enable_transcoder_func(encoder, crtc_state);
> > +	intel_ddi_enable_transcoder_func(encoder, crtc_state);
> >  
> >  	/* Enable/Disable DP2.0 SDP split config before transcoder */
> >  	intel_audio_sdp_split_update(crtc_state);
> > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> > index eec76ec167069..24388226db465 100644
> > --- a/drivers/gpu/drm/i915/display/intel_display.c
> > +++ b/drivers/gpu/drm/i915/display/intel_display.c
> > @@ -1630,6 +1630,93 @@ static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
> >  	hsw_set_transconf(crtc_state);
> >  }
> >  
> > +static void hsw_crtc_enable_slave(struct intel_atomic_state *state,
> > +				  struct intel_crtc *crtc)
> > +{
> > +	const struct intel_crtc_state *new_crtc_state =
> > +		intel_atomic_get_new_crtc_state(state, crtc);
> > +	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> > +	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
> > +	bool psl_clkgate_wa;
> > +
> > +	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> > +		return;
> > +
> > +	intel_dmc_enable_pipe(dev_priv, crtc->pipe);
> > +
> > +	if (!new_crtc_state->bigjoiner_pipes) {
> > +		intel_encoders_pre_pll_enable(state, crtc);
> > +
> > +		if (new_crtc_state->shared_dpll)
> > +			intel_enable_shared_dpll(new_crtc_state);
> > +
> > +		intel_encoders_pre_enable(state, crtc);
> > +	} else {
> > +		icl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
> > +	}
> > +
> > +	intel_dsc_enable(new_crtc_state);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 13)
> > +		intel_uncompressed_joiner_enable(new_crtc_state);
> > +
> > +	intel_set_pipe_src_size(new_crtc_state);
> > +	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
> > +		bdw_set_pipe_misc(new_crtc_state);
> > +
> > +	crtc->active = true;
> > +
> > +	/* Display WA #1180: WaDisableScalarClockGating: glk */
> > +	psl_clkgate_wa = DISPLAY_VER(dev_priv) == 10 &&
> > +		new_crtc_state->pch_pfit.enabled;
> > +	if (psl_clkgate_wa)
> > +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 9)
> > +		skl_pfit_enable(new_crtc_state);
> > +	else
> > +		ilk_pfit_enable(new_crtc_state);
> > +
> > +	/*
> > +	 * On ILK+ LUT must be loaded before the pipe is running but with
> > +	 * clocks enabled
> > +	 */
> > +	intel_color_load_luts(new_crtc_state);
> > +	intel_color_commit_noarm(new_crtc_state);
> > +	intel_color_commit_arm(new_crtc_state);
> > +	/* update DSPCNTR to configure gamma/csc for pipe bottom color */
> > +	if (DISPLAY_VER(dev_priv) < 9)
> > +		intel_disable_primary_plane(new_crtc_state);
> > +
> > +	hsw_set_linetime_wm(new_crtc_state);
> > +
> > +	if (DISPLAY_VER(dev_priv) >= 11)
> > +		icl_set_pipe_chicken(new_crtc_state);
> > +
> > +	intel_initial_watermarks(state, crtc);
> > +
> > +	intel_crtc_vblank_on(new_crtc_state);
> > +
> > +	intel_encoders_enable(state, crtc);
> > +
> > +	if (psl_clkgate_wa) {
> > +		intel_crtc_wait_for_next_vblank(crtc);
> > +		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
> > +	}
> > +
> > +	/* If we change the relative order between pipe/planes enabling, we need
> > +	 * to change the workaround. */
> > +	hsw_workaround_pipe = new_crtc_state->hsw_workaround_pipe;
> > +	if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) {
> > +		struct intel_crtc *wa_crtc;
> > +
> > +		wa_crtc = intel_crtc_for_pipe(dev_priv, hsw_workaround_pipe);
> > +
> > +		intel_crtc_wait_for_next_vblank(wa_crtc);
> > +		intel_crtc_wait_for_next_vblank(wa_crtc);
> > +	}
> > +}
> > +
> >  static void hsw_crtc_enable(struct intel_atomic_state *state,
> >  			    struct intel_crtc *crtc)
> >  {
> > @@ -1639,10 +1726,16 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
> >  	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
> >  	enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
> >  	bool psl_clkgate_wa;
> > +	struct intel_crtc *slave_crtc;
> >  
> >  	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
> >  		return;
> >  
> > +	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, slave_crtc,
> > +					 intel_crtc_bigjoiner_slave_pipes(new_crtc_state)) {
> > +		hsw_crtc_enable_slave(state, slave_crtc);
> > +	}
> 
> Thats not really what I'm after. Ideally we shouldn't end up with
> any master vs. slave split here, just a pipe vs. transcoder split.
> And then the high level flow should look something along the
> lines of:
> 
> crtc_enable()
> {
> 	transcoder_thing1();
> 
> 	for_each_joined_pipe()
> 		pipe_thing1();

One more thing. We can just iterate through joined pipe mask here, since
BSpec dictates different order how master/slave should be configured, based on
whether we are enabling or disabling, i.e for enabling we first enable slave pipes,
then master, for disabling we do vice versa.
Wondering then - should we invent somekind of a special macro for this?

Stan

> 
> 	transcoder_thing2();
> 
> 	for_each_joined_pipe()
> 		pipe_thing2();
> 
> 	...
> }
> 	
> -- 
> Ville Syrjälä
> Intel
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 2746655bcb264..9723f1b49cf95 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3340,8 +3340,7 @@  static void intel_enable_ddi(struct intel_atomic_state *state,
 {
 	drm_WARN_ON(state->base.dev, crtc_state->has_pch_encoder);
 
-	if (!intel_crtc_is_bigjoiner_slave(crtc_state))
-		intel_ddi_enable_transcoder_func(encoder, crtc_state);
+	intel_ddi_enable_transcoder_func(encoder, crtc_state);
 
 	/* Enable/Disable DP2.0 SDP split config before transcoder */
 	intel_audio_sdp_split_update(crtc_state);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index eec76ec167069..24388226db465 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1630,6 +1630,93 @@  static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_sta
 	hsw_set_transconf(crtc_state);
 }
 
+static void hsw_crtc_enable_slave(struct intel_atomic_state *state,
+				  struct intel_crtc *crtc)
+{
+	const struct intel_crtc_state *new_crtc_state =
+		intel_atomic_get_new_crtc_state(state, crtc);
+	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
+	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
+	bool psl_clkgate_wa;
+
+	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
+		return;
+
+	intel_dmc_enable_pipe(dev_priv, crtc->pipe);
+
+	if (!new_crtc_state->bigjoiner_pipes) {
+		intel_encoders_pre_pll_enable(state, crtc);
+
+		if (new_crtc_state->shared_dpll)
+			intel_enable_shared_dpll(new_crtc_state);
+
+		intel_encoders_pre_enable(state, crtc);
+	} else {
+		icl_ddi_bigjoiner_pre_enable(state, new_crtc_state);
+	}
+
+	intel_dsc_enable(new_crtc_state);
+
+	if (DISPLAY_VER(dev_priv) >= 13)
+		intel_uncompressed_joiner_enable(new_crtc_state);
+
+	intel_set_pipe_src_size(new_crtc_state);
+	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
+		bdw_set_pipe_misc(new_crtc_state);
+
+	crtc->active = true;
+
+	/* Display WA #1180: WaDisableScalarClockGating: glk */
+	psl_clkgate_wa = DISPLAY_VER(dev_priv) == 10 &&
+		new_crtc_state->pch_pfit.enabled;
+	if (psl_clkgate_wa)
+		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true);
+
+	if (DISPLAY_VER(dev_priv) >= 9)
+		skl_pfit_enable(new_crtc_state);
+	else
+		ilk_pfit_enable(new_crtc_state);
+
+	/*
+	 * On ILK+ LUT must be loaded before the pipe is running but with
+	 * clocks enabled
+	 */
+	intel_color_load_luts(new_crtc_state);
+	intel_color_commit_noarm(new_crtc_state);
+	intel_color_commit_arm(new_crtc_state);
+	/* update DSPCNTR to configure gamma/csc for pipe bottom color */
+	if (DISPLAY_VER(dev_priv) < 9)
+		intel_disable_primary_plane(new_crtc_state);
+
+	hsw_set_linetime_wm(new_crtc_state);
+
+	if (DISPLAY_VER(dev_priv) >= 11)
+		icl_set_pipe_chicken(new_crtc_state);
+
+	intel_initial_watermarks(state, crtc);
+
+	intel_crtc_vblank_on(new_crtc_state);
+
+	intel_encoders_enable(state, crtc);
+
+	if (psl_clkgate_wa) {
+		intel_crtc_wait_for_next_vblank(crtc);
+		glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false);
+	}
+
+	/* If we change the relative order between pipe/planes enabling, we need
+	 * to change the workaround. */
+	hsw_workaround_pipe = new_crtc_state->hsw_workaround_pipe;
+	if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) {
+		struct intel_crtc *wa_crtc;
+
+		wa_crtc = intel_crtc_for_pipe(dev_priv, hsw_workaround_pipe);
+
+		intel_crtc_wait_for_next_vblank(wa_crtc);
+		intel_crtc_wait_for_next_vblank(wa_crtc);
+	}
+}
+
 static void hsw_crtc_enable(struct intel_atomic_state *state,
 			    struct intel_crtc *crtc)
 {
@@ -1639,10 +1726,16 @@  static void hsw_crtc_enable(struct intel_atomic_state *state,
 	enum pipe pipe = crtc->pipe, hsw_workaround_pipe;
 	enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder;
 	bool psl_clkgate_wa;
+	struct intel_crtc *slave_crtc;
 
 	if (drm_WARN_ON(&dev_priv->drm, crtc->active))
 		return;
 
+	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, slave_crtc,
+					 intel_crtc_bigjoiner_slave_pipes(new_crtc_state)) {
+		hsw_crtc_enable_slave(state, slave_crtc);
+	}
+
 	intel_dmc_enable_pipe(dev_priv, crtc->pipe);
 
 	if (!new_crtc_state->bigjoiner_pipes) {
@@ -1665,8 +1758,7 @@  static void hsw_crtc_enable(struct intel_atomic_state *state,
 	if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv))
 		bdw_set_pipe_misc(new_crtc_state);
 
-	if (!intel_crtc_is_bigjoiner_slave(new_crtc_state) &&
-	    !transcoder_is_dsi(cpu_transcoder))
+	if (!transcoder_is_dsi(cpu_transcoder))
 		hsw_configure_cpu_transcoder(new_crtc_state);
 
 	crtc->active = true;
@@ -1700,9 +1792,6 @@  static void hsw_crtc_enable(struct intel_atomic_state *state,
 
 	intel_initial_watermarks(state, crtc);
 
-	if (intel_crtc_is_bigjoiner_slave(new_crtc_state))
-		intel_crtc_vblank_on(new_crtc_state);
-
 	intel_encoders_enable(state, crtc);
 
 	if (psl_clkgate_wa) {
@@ -1777,6 +1866,15 @@  static void ilk_crtc_disable(struct intel_atomic_state *state,
 	intel_disable_shared_dpll(old_crtc_state);
 }
 
+static void hsw_crtc_disable_slave(struct intel_atomic_state *state,
+				   struct intel_crtc *crtc)
+{
+	const struct intel_crtc_state *old_crtc_state =
+		intel_atomic_get_old_crtc_state(state, crtc);
+
+	intel_disable_shared_dpll(old_crtc_state);
+}
+
 static void hsw_crtc_disable(struct intel_atomic_state *state,
 			     struct intel_crtc *crtc)
 {
@@ -1788,23 +1886,21 @@  static void hsw_crtc_disable(struct intel_atomic_state *state,
 	 * FIXME collapse everything to one hook.
 	 * Need care with mst->ddi interactions.
 	 */
-	if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) {
-		intel_encoders_disable(state, crtc);
-		intel_encoders_post_disable(state, crtc);
-	}
+	intel_encoders_disable(state, crtc);
+	intel_encoders_post_disable(state, crtc);
 
 	intel_disable_shared_dpll(old_crtc_state);
 
-	if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) {
-		struct intel_crtc *slave_crtc;
+	struct intel_crtc *slave_crtc;
 
-		intel_encoders_post_pll_disable(state, crtc);
+	intel_encoders_post_pll_disable(state, crtc);
 
-		intel_dmc_disable_pipe(i915, crtc->pipe);
+	intel_dmc_disable_pipe(i915, crtc->pipe);
 
-		for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc,
-						 intel_crtc_bigjoiner_slave_pipes(old_crtc_state))
-			intel_dmc_disable_pipe(i915, slave_crtc->pipe);
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc,
+					 intel_crtc_bigjoiner_slave_pipes(old_crtc_state)) {
+		intel_dmc_disable_pipe(i915, slave_crtc->pipe);
+		hsw_crtc_disable_slave(state, slave_crtc);
 	}
 }
 
@@ -6791,8 +6887,10 @@  static void intel_commit_modeset_disables(struct intel_atomic_state *state)
 		 * Slave vblanks are masked till Master Vblanks.
 		 */
 		if (!is_trans_port_sync_slave(old_crtc_state) &&
-		    !intel_dp_mst_is_slave_trans(old_crtc_state) &&
-		    !intel_crtc_is_bigjoiner_slave(old_crtc_state))
+		    !intel_dp_mst_is_slave_trans(old_crtc_state))
+			continue;
+
+		if (intel_crtc_is_bigjoiner_slave(old_crtc_state))
 			continue;
 
 		intel_old_crtc_state_disables(state, old_crtc_state,
@@ -6810,6 +6908,9 @@  static void intel_commit_modeset_disables(struct intel_atomic_state *state)
 		if (!old_crtc_state->hw.active)
 			continue;
 
+		if (intel_crtc_is_bigjoiner_slave(old_crtc_state))
+			continue;
+
 		intel_old_crtc_state_disables(state, old_crtc_state,
 					      new_crtc_state, crtc);
 	}
@@ -6922,8 +7023,10 @@  static void skl_commit_modeset_enables(struct intel_atomic_state *state)
 			continue;
 
 		if (intel_dp_mst_is_slave_trans(new_crtc_state) ||
-		    is_trans_port_sync_master(new_crtc_state) ||
-		    intel_crtc_is_bigjoiner_master(new_crtc_state))
+		    is_trans_port_sync_master(new_crtc_state))
+			continue;
+
+		if (intel_crtc_is_bigjoiner_slave(new_crtc_state))
 			continue;
 
 		modeset_pipes &= ~BIT(pipe);
@@ -6933,7 +7036,7 @@  static void skl_commit_modeset_enables(struct intel_atomic_state *state)
 
 	/*
 	 * Then we enable all remaining pipes that depend on other
-	 * pipes: MST slaves and port sync masters, big joiner master
+	 * pipes: MST slaves and port sync masters
 	 */
 	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
 		enum pipe pipe = crtc->pipe;
@@ -6941,6 +7044,9 @@  static void skl_commit_modeset_enables(struct intel_atomic_state *state)
 		if ((modeset_pipes & BIT(pipe)) == 0)
 			continue;
 
+		if (intel_crtc_is_bigjoiner_slave(new_crtc_state))
+			continue;
+
 		modeset_pipes &= ~BIT(pipe);
 
 		intel_enable_crtc(state, crtc);